WikiSecurityCallbackImpl.java

/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <hr>
* <a href="http://www.openolat.org">
* OpenOLAT - Online Learning and Training</a><br>
* This file has been modified by the OpenOLAT community. Changes are licensed
* under the Apache 2.0 license as the original file.
*/
package org.olat.modules.wiki;

import org.olat.core.commons.services.notifications.SubscriptionContext;
import org.olat.course.run.userview.NodeEvaluation;
import org.olat.modules.fo.ForumCallback;

/**
 * Initial Date:  Nov 28, 2006 <br>
 * @author guido
 */
public class WikiSecurityCallbackImpl implements WikiSecurityCallback {
	
	private NodeEvaluation ne;
	private boolean isOlatAdmin;
	private boolean isGuestOnly;
	private boolean isGroupWiki;
	private boolean isResourceOwner;
	private SubscriptionContext subscriptionContext;

	/**
	 * 
	 * @param ne
	 * @param isOlatAdmin
	 * @param isGuestOnly
	 * @param isGroupWiki
	 */
	public WikiSecurityCallbackImpl(NodeEvaluation ne, boolean isOlatAdmin, 
			boolean isGuestOnly, boolean isGroupWiki, 
			boolean isResourceOwner, SubscriptionContext subscriptionContext){
		this.ne = ne;
		this.isOlatAdmin = isOlatAdmin;
		this.isGuestOnly = isGuestOnly;
		this.isGroupWiki  = isGroupWiki;
		this.isResourceOwner = isResourceOwner;
		this.subscriptionContext = subscriptionContext;
	}
	
	/**
	 * 
	 * @return true if admin or allowed by preconditions
	 */
	@Override
	public boolean mayEditAndCreateArticle(){
		if(isGroupWiki) return true;
		if(isGuestOnly) return false;
		if(isOlatAdmin) return true;
		//if(isResourceOwner) return true; //should not shortcut the nodeEvauation values			
		if(ne != null && ne.isCapabilityAccessible("access")
				&& ne.isCapabilityAccessible("editarticle")) {
			return true;
		}
		if(ne == null) return true; //wiki is started from repo, and it's visible to this user, so creating pages is allowed
		return false;
	}
	
	/**
	 * 
	 * @return true if admin or resource owner or used in group context
	 */
	@Override
	public boolean mayEditWikiMenu(){
		if(isGroupWiki) return true;
		if(isGuestOnly) return false;
		if(isOlatAdmin) return true;
		if(isResourceOwner) return true;
		return false;
	}
	
	/**
	 * @return the subscriptionContext. if null, then no subscription must be offered
	 */
	@Override
	public SubscriptionContext getSubscriptionContext()
	{
		return (isGuestOnly ? null : subscriptionContext);
	}

	@Override
	public boolean mayModerateForum()	{
		if(!isGuestOnly && (isOlatAdmin || isResourceOwner)) {
			return true;		
		}		
		return false;
	}

	@Override
	public ForumCallback getForumCallback() {
		boolean isModerator = mayModerateForum();
		return new WikiForumCallback(isGuestOnly, isModerator, subscriptionContext);
	}
}